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- W3157003676 abstract "Mesoporous carbon supported ultrasmall metal nanoparticles (MNPs) are attracting interests in various catalytic applications. Traditional synthetic methods usually involve tedious and time-consuming procedures. Therefore, it remains a grand challenge to prepare well-defined ultrasmall MNPs on mesoporous carbon support. Here, we successfully synthesized a series of mesoporous carbon-supported ultrasmall noble MNPs including Rh, Ru and Pd via a “Two-in-One” strategy which combines the synthesis of mesoporous carbon with ultrasmall MNPs based on a facile mechanochemical method. The key here is to employ CaC2 as both a carbon source for the construction of porous carbon network and an efficient reducing agent to facilitate the formation of ultrasmall MNPs via a solid-state redox reaction. This method circumvent high-temperature pyrolysis and other tedious procedures for the preparation of mesoporous carbon and MNPs, thus representing a versatile, ultrafast, and scalable strategy. Interestingly, the as-prepared Rh-BM-C after ball milling (BM) exhibits an extraordinary low-overpotential of 28 [email protected] mA cm−2 as well as a remarkable turnover frequency (TOF) value of 2.6 H2 s-1@50 mV for hydrogen evolution. Density functional theory (DFT) calculations reveal that nitrogen-doping, type of noble metal and synergistic effect between metal layer and carbon support play a critical role in achieving this compelling HER performance." @default.
- W3157003676 created "2021-04-26" @default.
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- W3157003676 date "2021-10-01" @default.
- W3157003676 modified "2023-10-03" @default.
- W3157003676 title "Mesoporous carbon-supported ultrasmall metal nanoparticles via a mechanochemical-driven redox reaction: A “Two-in-One” strategy" @default.
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- W3157003676 doi "https://doi.org/10.1016/j.apcatb.2021.120232" @default.
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